采用铜模吸铸法制备[Fe0.71(DyxNd1-x)0.05B0.24]96Nb4(x=0-1,摩尔分数)块体合金,利用X射线衍射(XRD)、差示扫描量热仪(DSC)和振动样品磁强计(VSM)研究合金的非晶形成能力(GFA)和磁性能.结果表明:该体系合金均具有较好的非晶形成能力,可制备出直径为2 mm的完全非晶合金,随着Dy含量(x)的增加,合金的非晶形成能力逐渐增强.当x=1时,可制得直径为3mm的完全非晶合金;饱和磁化强度(Ms)由x=0时的M=97.59 A·m2/kg逐渐降低到x=1时的M=75.85 A·m2/kg.该体系直径为2mm的块体非晶合金均表现为明显的软磁性特征.
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